(641+395)÷37简便算法
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(641+395)÷37简便算法(641+395)÷37简便算法(641+395)÷37简便算法(641+395)÷37=1036÷37=28641=370+271395=370+25271+25=2
(641+395)÷37简便算法
(641+395)÷37简便算法
(641+395)÷37简便算法
(641+395)÷37
=1036÷37
=28
641=370+271
395=370+25
271+25=296
296=370--74=37*10-74=37*8
370+370+296=37*10+37*10+37*(10-2)=37*28
=28